Answer:
$40
Step-by-step explanation:
20x2=40
Solve the equation.
Hint: Rewrite the equation!!!
16 = - 4(y + 3)
Answer:
Step-by-step explanation:
16 = - 4y - 12
Bringing like terms on one side
16 + 12 = - 4y
28 = - 4y
28/-4 = y
-7 = y
A tank contains 80 gallons of water and is getting filled at rate of 3 gallons per minute. How many gallons of water will be in the tank after 4 minutes. Explain your answer
Answer:
Step-by-step explanation: 92 gallons bc if u calc the rate on 3 gallons per minute, times 4 which gives 12, add that to the 80 gallons alr filled then boom. 92.
what is the answer to this equation 100 + 30x = 50x
Answer:
Solution = = 5
Step-by-step explanation:
1. Rearrange Terms
100 + 30x = 50x
30x + 100 = 50x
2. Subtract 100 from both sides
3. Simplify
4. Subtract 50x from both sides
5. Simplify
Please let me know if you need anymore help!
Thank You and Good Luck! :)
f(n) = -n^3 – 4ng(n) =
-n +4Find: f(n) +g(n)
Answer:
-n^3 – 5n + 4
Step-by-step explanation:
f(n) = -n^3 – 4
g(n) = -n +4
f(n)+ g(n) = (-n^3 – 4n)+(-n +4)
= (-n^3 – 4n -n +4)
= -n^3 – 5n +4
The equation y=5+0.5x represents the cost of getting a car wash and using the vacuum for x minutes. What is the y-intercept?
The y-intercept is 5.
The y-intercept is -5.
The y-intercept is 6.
The y-intercept is -6
5 is the y intercept.
-Always the number without the variable.
any of these would be helpful to know the answer to
Answer:
Question 8: w=7200
Step-by-step explanation:
2400/2=1200 is c is 1 so 1200x6=7200
As an estimation we are told £3 is €4.
Convert £7.50 to euros.
Answer:
€5000
Step-by-step explanation:
Reba needs to simplify the expression below.
6 and one-half + 3.5 times 2 minus 7 divided by 3
Which operation should she perform first?
Answer:
she should preform division
Step-by-step explanation:
Answer:
Actually, it's C multiplication Cutty you can't be giving Wrong answers.
Step-by-step explanation:
It's C Multiplication because Were using the PEMDAS technique and this stands for
P- Parenthesis
E- Exponents
M- Multiplication
D- Division
A- Addition
S- Subtraction
So if you see in the Pemdas technique It will be C Multiplication.
Help me witch these 4 questions and thanks
Answer:
1. f(n+1) = f(n) + 0.09
2. The correct answer is 403 = x. The student’s error is that she did not cancel out properly the constant by the inverse add ended to find the answer of the variable.
3. B
4. D 34 + 6(25.3)
Can someone pls help will give Brainliest to correct answers
Tell me if its hard to read ty
Answer:
1. the perimeter of the first question is 22.5
2. true
5. 16.25
these are the only ones i remember how to do!
sorry :(
Hopefully someone fills in the rest of the answers!!!
Answer:
Question 1:
8/12 = 4/6 = 3/x
0.6 = 0.6 = 3/x
It is a similar triangle, therefore 3/x = 0.6
x = 5 because 3/5 = 0.6
Question 2
You did that correct :)
Question 3:
"Check all that apply"
B
D
Question 4
You got question 4 wrong since similar triangles have similar ratio.
8/10 = 8/10 = 10/14
0.8 = 0.8 = 0.7
Correct answer for question 4 is B("No they are not similar because the ratios are not equal")
Question 5
The Quadrilaterals are similar. Therefore:
22.4/14 = 12.8/8 = 12/7.5 = 26/x
1.6 = 1.6 = 1.6 = 26/x
Meaning 26/x = 1.6
x = 16.25
Because 26/16.25 = 1.6
Hope that helps :)
The ratio of students to teachers competing in a charity race is 8:3. If 48 students take part in the race, how many teachers are
there?
Answer:
8/3=48/x
Step-by-step explanation:
times both sides by 3 8=144/x
times x by both sides 8x=144
x=18
there are 18 techers
Noah's recipe
Andre's recipe
scoops of powder
cups of water
scoops of powder
cups of water
To make orange fizz, Noah mixes 4 scoops of
powder with 6 cups of water. Andre mixes 5 scoops
of powder with 8 cups of water. Whose mixture has
more orange flavor?
10
15
1
Noah's recipe
because 6 cups of
water is less than 8
cups of water.
Noah's recipe
because he uses
less water per
scoop of powder
than Andre does.
Andre's recipe because
he uses more scoops
of powder per cup of
water than Noah does.
Andre's recipe
because he uses
more scoops of
powder.
Answer:
Noah
Step-by-step explanation:
4/6 = 32/48
5/8 = 30/48
It is simple I did this a while back and got an A
Question in picture solve
Answer:
x= 13.5
Step-by-step explanation:
f(x) = 2x + 9
f(x) = 36
Set the 2 equations equal to each other;
2x + 9 = 36
Subtract 9 from both sides;
2x = 27
Divide both sides by 2;
x = 13.5
Check:
f(x) = 2x + 9
f(13.5) = 2(13.5) + 9= 27 + 9 = 36
What's 0.13 quite a bit
katiyln and lewis share sweets in the ratio 7:1 if katliyn geta 21 sweets how many does lewis get
Answer:
Step-by-step explanation:
Given Katiyln and lewis share sweets in the ratio =7:1
katliyn gets= 21 sweets
share of katiyln sweet =7x
share of Lewis sweet =X
So 7x=21 given
X=21/7
X=3
So Lewis gets x =3 sweets.
Here is a really fun assignment which my friend gave me:
Use the numbers below to get 6. You can use any operation, but you can't use ANY other numbers.
2,2,2 =
3,3,3 =
4,4,4 =
5,5,5 =
6,6,6 =
7,7,7 =
8,8,8 =
9,9,9 =
Answer:
2x2 = 4 + 2 = 6.
Step-by-step explanation:
8 (-5) (4) =
Please I need the answer
Answer:
-160
Step-by-step explanation:
you can plug this into a calculator for a quick answer :)
-6a +3 =-3(2a-1) question number 2
Answer:
D. identity
Step-by-step explanation:
- 6a + 3 = - 3(2a - 1)
First, distribute -3 within the parenthesis.
- 6a + 3 = - 6a + 3
Subtract 3 from both sides of the equation
- 6a = - 6a
Divide - 6 on both sides of the equation
a = a
We know because both sides have the same equation, and that it is true, that this equation has infinite solutions, so the answer would be D. Identity
For those who don't know, identity in algebra means that the equation is true no matter what is substituted in for the variable. It will always be true.
I hope that this helps! :)
What is 4n+n-2n as a simplified expression?
Answer:
4n-n
Step-by-step explanation:
HELP ME WITH THIS I'LL GIVE THE BRAINLIEST.
For items 6 to 9, use illustration on long division that follows:
6. Which is the dividend?
A. 5x + 5
B. 5x -5
C. 25x2 - 50x +25
D.O
7. What is the remainder?
A. 5x + 5
B.X + 5
C. -5
D.O
8. Which is the quotient?
A. 5x + 5
B. 5x -5
C. 5x² + 14x-24
D.O
9. What is the process used to obtain the 2nd line?
A. Multiplying 5x by (5x-5)
C. Dividing 5x by (5x -5)
B. Adding 5x by (5x-5)
D. Subtracting 5x by (5x -5)
Answer:
6) A. 5x+5
7) D. 0
8) A. 5x+5
9) I'm not sure sorry
Step-by-step explanation:
27x9^3x can be written in the form 3^k where K is an expression in terms of x. Find k
Answer:
k = 3 + 6x
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]
[tex](a^{m}) ^{n}[/tex] = [tex]a^{mn}[/tex]
Given
27 × [tex]9^{3x}[/tex]
= 3³ × [tex](3^{2}) ^{3x}[/tex]
= 3³ × [tex]3^{6x}[/tex]
= [tex]3^{3+6x}[/tex]
= [tex]3^{k}[/tex] → with k = 3 + 6x
answer in scientific notation :(7.5x10^10)x(4.9x10^7)
Answer:
3.675 × 10^18
Step-by-step explanation:
Find the area of this trapezoid. Be sure to include the correct unit in your answer.
-2x + 3(-4x + 6) =116
What is it
HELP ME ANSWER THESE 2 QUESTIONS MY PARENTS ARE ABOUT TO PUNISH ME IF I DONT DO IT (SHOW WORK OR ANSWER WILL NOT COUNT)
Answer:
what are the questions hurry and tell me
please use ( y = mx +b )
Answer:
y= 2/5-1
Step-by-step explanation:
You get the 2/5 because you go 2 to the right and go 5 up, the -1 is because the x-int is at -1.
A rectangular swimming pool has a volume of 1750 ft.³ water is being added to the pool at a rate of about 20 ft.³ per minute. use an equation in point slope form to determine about how long will it take to fill the pool completely if there were already 1125 gallons of water in the pool use the fact that one cubic foot of space holds about 7.5 gallons of water round the answer to the nearest integer if necessary
Answer:
You have a rectangular pool 15 X 30 X 5 feet
The floor of the pool is 15X30 = 450 ft2
Two sides are 5X15 = 2(75) = 150 ft2
Two sides are 5X30 = 2(150) = 300 ft2
Total area to be painted: 900 ft2
(900 ft2)/(250 ft2/gal) = 3.6 gallons
Since we can't purchase .6 gallons we
must purchase 4 gallons of paint
The volume of the pool is 15X30X5 = 2250 ft3
1 ft3 = 7.48 gallons
2250(7.48) = 16,830 gallons of water
Lin knows that there are 4 quarts in a gallon. She wants to convert 6 quarts to a gallon, but cannot decide if she should multiply 6 by 4 or divide 6 by 4 to find her answer. What should she do? Explain or show your reasoning.
Given:
There are 4 quarts in a gallon.
She wants to convert 6 quarts to a gallon.
To find:
Whether she should multiply 6 by 4 or divide 6 by 4 to find her answer.
Solution:
We have,
[tex]4\text{ quarts}=1\text{ gallon}[/tex]
[tex]1\text{ quarts}=\dfrac{1}{4}\text{ gallon}[/tex]
[tex]6\text{ quarts}=\dfrac{6}{4}\text{ gallon}[/tex]
Here, 6 quarts is equal to [tex]\dfrac{6}{4}[/tex] gallon. It means we need to multiply 6 by 4 in [tex]4\text{ quarts}=1\text{ gallon}[/tex] to find the answer.
2300 people came to the ball game last week. This week there was a 13% decrease. How many people attended the football game this week. The problem can be represented by the expression p-0.13p.
Answer: 2001 people attended the football game this week.
Step-by-step explanation:
Given: Total people came to the ball game = 2300
Decrease percent = 13%
Number of people attended the football game this week = p-0.13p, where p= number of people attended football last week.
for p= 2300
Number of people attended the football game this week = 2300- 0.13 x (2300)
=2300- 299
= 2001
hence, 2001 people attended the football game this week.
Can someone help me with this.
Answer:
1. y = -4
2. y = -0.73 (rounded; it's a repeating decimal and the 3 goes on. -0.7333333, and so on)
3. y = 24
4. c = -13.5
Step-by-step explanation:
30+7y=-2y-6
You want to get the y all by itself. So in order to do that you must combine the like terms from both sides. (so you'll combine the values with a variable, in this case y, and then you will combine the numbers without a variable.)
So, first, get the y's on the same side.
30+7y = -2y-6
Because 2 is negative "-2y", in order to cancel it out you have to ADD 2y to both sides.
30+(7y+2y)= -6
30+9y=-6
Remember, your goal is to get y by itself. So in order to do that, you have to get rid of the solo number on the same side, which is 30. Therefore, you must subtract 30 from BOTH SIDES.
9y= (-6 - 30)
Remember, when you're subtracting with negatives. The rule is: KEEP IT, SWITCH IT, SWITCH IT.
Keep the -6.
Switch the - to a +
And switch the positive thirty to a negative 30.
9y= -6 + (-30)
9y = -36
You want the y alone, so you have to cancel out the multiplication by its recipriocal (or opposite). The opposite of multiplication is division. So you must divide both sides by 9.
y= -36 ÷ 9
y= -4
__________________________
4(3y+4.1)=7.6
Use the distributive property and multiply the 4 (which is outside of the partenthesis) by what's inside of the parenthesis (3y+4.1).
4(3y+4.1):
4 x 3y = 12y
4 x 4.1 = 16.4
12y+16.4 = 7.6
Subtract 16.4 from both sides
12y = -8.8
Divide both sides by 12 to get the y by itself
y= -0.73 (repeating)
__________________________
3(y+1) = 4y-21
This is similar to the last problem. You must use the distributive property and multiply what's outside of the parenthesis by what's inside of the parenthesis.
3 x y = 3y
3 x 1 = 3
Rewrite the equation
3y+3 = 4y-21
Now this problem is similar to the very first problem
You need y by itself. So subtract 3y from both sides
3=(4y-3y)-21
3= 1y-21
Add 21 to both sides to get y by itself
24=1y
y=24
__________________________
3(2c+5) = 4(c-3)
This is just like the last two problems, you must use the distributive property.
3 x 2c = 6c
3 x 5 = 15
Rewrite equation.
6c+15 = 4(c-3)
Now you have to use the distrubtive property for 4(c-3)
4 x c = 4c
4 x (-3) = -12
Rewrite
6c + 15 = 4c - 12
Subtract both sides by 4c
(6c-4c) + 15 = -12
2c + 15 = -12
Subtract by 15 from both sides.
2c = -27
Divide both sides by 2, in order to get c by itself
c = -27 ÷ 2
c = -13.5